Fix JS examples

src/content/doc-surrealdb/security/authentication.mdx

@@ -43,13 +43,13 @@ Examples using the JavaScript SDK or a raw HTTP request.
 ```javascript
 const db = new Surreal();
 db.connect('ws://localhost:8000/rpc', {
-	ns: 'test',
-	db: 'test',
+	namespace: 'test',
+	database: 'test',
 });
 
 db.signin({
-	user: 'john',
-	pass: 'VerySecurePassword!',
+	username: 'john',
+	password: 'VerySecurePassword!',
 });
 ```
 
@@ -83,17 +83,17 @@ Notice how we need to pass along `NS` and `DB` properties here, to let SurrealDB
 ```javascript
 const db = new Surreal();
 db.connect('ws://localhost:8000/rpc', {
-	ns: 'test',
-	db: 'test',
+	namespace: 'test',
+	database: 'test',
 });
 
 db.signin({
 	// Because we are signin in a database user, we need to let SurrealDB know on which database this user is located.
-	NS: 'test',
-	DB: 'test',
+	namespace: 'test',
+	database: 'test',
 
-	user: 'mary',
-	pass: 'VerySecurePassword!',
+	username: 'mary',
+	password: 'VerySecurePassword!',
 });
 ```
 
@@ -185,21 +185,23 @@ Examples using the JavaScript SDK or a raw HTTP request.
 ```js
 const db = new Surreal();
 db.connect('ws://localhost:8000/rpc', {
-	ns: 'test',
-	db: 'test',
+	namespace: 'test',
+	database: 'test',
 });
 
 db.signup({
-	NS: 'test',
-	DB: 'test',
+	namespace: 'test',
+	database: 'test',
 
 	// Provide the name of the access method
-	AC: 'user',
+	access: 'user',
 
 	// Provide the variables used by the signup query
-	name: 'John Doe',
-	email: '[email protected]',
-	password: 'VerySecurePassword!',
+	variables: {
+    	name: 'John Doe',
+    	email: '[email protected]',
+    	password: 'VerySecurePassword!',
+	}
 });
 ```
 #### HTTP Request
@@ -222,20 +224,22 @@ Examples using the JavaScript SDK or a raw HTTP request.
 ```js
 const db = new Surreal();
 db.connect('ws://localhost:8000/rpc', {
-	ns: 'test',
-	db: 'test',
+	namespace: 'test',
+	database: 'test',
 });
 
 db.signin({
-	NS: 'test',
-	DB: 'test',
+	namespace: 'test',
+	database: 'test',
 
 	// Provide the name of the access method
-	AC: 'user',
+	access: 'user',
 
 	// Provide the variables used by the signin query
-	email: '[email protected]',
-	password: 'VerySecurePassword!',
+	variables: {
+    	email: '[email protected]',
+    	password: 'VerySecurePassword!',
+	}
 });
 ```